A man drives at a rate of 25 kph towards the foot of an 8-m tall monument. At what rate is he approaching the top when he is 42 m from the foot of the monument? 6.82 kph 21.45kph 31.58 kph 24.56 kph

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter12: Quadratic Functions
Section12.8: Joint And Combined Variation
Problem 3E
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A man drives at a rate of 25 kph towards the foot of an 8-m tall monument. At what rate is he approaching the top when he is 42 m from the foot of the monument?
6.82 kph
21.45kph
31.58 kph
24.56 kph

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